Backport PR #55427 on branch 2.1.x (DOC: Remove outdated docs about N…

…umPy's broadcasting) (#55896)

Backport PR #55427: DOC: Remove outdated docs about NumPy's broadcasting

Co-authored-by: cobalt <61329810+RedGuy12@users.noreply.github.com>

doc/source/user_guide/basics.rst

@@ -408,20 +408,6 @@ raise a ValueError:
 
     pd.Series(['foo', 'bar', 'baz']) == pd.Series(['foo'])
 
-Note that this is different from the NumPy behavior where a comparison can
-be broadcast:
-
-.. ipython:: python
-
-    np.array([1, 2, 3]) == np.array([2])
-
-or it can return False if broadcasting can not be done:
-
-.. ipython:: python
-   :okwarning:
-
-    np.array([1, 2, 3]) == np.array([1, 2])
-
 Combining overlapping data sets
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~